I love my grandpa but..

I have been living with him and this summer it has been especially hot and he refuses to put on the AC. Of course I've tried all I can to keep cool I have a fan, I always drink cold water and even wear literally nothing. But it is still so hot.. and it causes other problems like none of my friends want to hang out at my place or when he has his friends over I have to be careful leaving my room because his friends will see me basically wearing nothing and it is impossible to sleep at night.


idk how to convince him to turn on the AC.